Why Jason Calacanis wants to kill the demo conference

At the D Conference yesterday I asked Jason why he wanted to kill the DEMO conference with TechCrunch 50. Chris Shipley, host of DEMO, expressed earlier that she did not understand why Jason wanted DEMO to disappear and not just compete with DEMO. I hear Jason actually has a lot of respect for Chris too, he just wants to kill competition, "nothing personal". I am hoping to catch a video from Chris too with her answer. Here is Jason's video.